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GMC Truck
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1983
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G 2500 3/4 Ton Van V8-350 5.7L VIN L 4-bbl
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Repair and Diagnosis
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Specifications
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Pressure, Vacuum and Temperature Specifications
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Fuel Delivery and Air Induction
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Fuel Pressure
Fuel Pressure
FUEL SYSTEM SPECIFICATIONS
Pressure
Light Duty
5.5 - 7.0 psi
Heavy Duty
7.5 - 9.0 psi
(with vapor return hose pinched off)
Volume
1 pint or more in 30 seconds
Vacuum
at least 15 in HG